Ruling · Yama Tarpaṇa · 2048

Tuesday 14 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 282 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two dawns

One ghaṭī is 24 minutes. Aruṇodaya is 2 muhūrtas before sunrise.

Dawn of Tuesday 14 January

Taken. The only dawn Caturdaśī reaches.

05:41 aruṇodaya beginssunrise 07:36
05:1705:4106:0506:2906:5307:1707:4108:05

115 of 115 minutes covered

Dawn of Wednesday 15 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:41 aruṇodaya beginssunrise 07:36
05:1705:4106:0506:2906:5307:1707:4108:05

0 of 114 minutes covered

Caturdaśī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 01:00 on Tue 14 Jan to 22:10 on Tue 14 Jan.

    2048-01-13T16:59:38Z → 2048-01-14T14:09:56Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:41–07:36 on the 14th, 05:41–07:36 on the 15th.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 115 of 115 minutes on the 14th and 0 of 114 on the 15th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one dawn qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 16911 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2048: Tuesday 14 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2048 falls on Tuesday 14 January. Caturdaśī runs from 01:00 on Tue 14 Jan to 22:10 on Tue 14 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2048/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 14 Jan
Ahargaṇa, classicalDisc centre, no refractionTue 14 Jan
compat-drikpanchangComparison profileTue 14 Jan
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/yama-tarpana · ruleset 2026.3-draft

Month
Pauṣa, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturdaśī
Kāla
Aruṇodaya
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturdaśīAruṇodaya 13thCoveredAruṇodaya 14thCoveredRuled
Los Angeles09:00 → 06:1005:080 min05:0862 min14 Jan
Chicago11:00 → 08:1005:200 min05:20117 min14 Jan
Jersey City12:00 → 09:1005:230 min05:23116 min14 Jan
Port of Spain13:00 → 10:1004:490 min04:49100 min14 Jan
London17:00 → 14:1005:550 min05:55126 min14 Jan
Durban19:00 → 16:1003:470 min03:4881 min14 Jan
Dubai21:00 → 18:1005:200 min05:20106 min14 Jan
Delhi22:30 → 19:4005:270 min05:27108 min14 Jan
Kolkata22:30 → 19:4004:340 min04:34105 min14 Jan
Singapore01:00 → 22:1005:360 min05:3696 min14 Jan
Sydney04:00 → 01:1004:390 min04:4079 min14 Jan
Suva05:00 → 02:1004:140 min04:1542 min14 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
yama-tarpana@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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